Two light dependent resistors are arranged on the edges of the solar panel.
Sun tracker solar panel project.
Light dependent resistors produce low resistance when light falls on them.
In this sun tracker circuit two ldrs are used to detect the direction of sun.
The solar panels are normally oriented perpendicular to the sun for getting the optimal parameters.
The circuit design of solar tracker is simple but setting up the system must be done carefully.
To connect the panels into a string just solder the positive lead of one panel to the negative lead of the other which should leave you with a positive and negative wire left over.
Attach your two ldr s to each side of the solar panel east and west and solder one end of a jumper wire to each of their leads.
Charge your phone with free clean energy.
Build a sun tracking solar array in under an hour.
The sun tracking solar panel consists of two ldrs solar panel and a servo motor and atmega328 micro controller.
Solar panel sun tracker phone charger fun and easy green robot.
The pwm inputs of two servos are given from digital pins 9 and 10 of arduino.